W78C32C Datasheet, PDF (11/18 Pages) Winbond – 8-BIT MICROCONTROLLER

W78C32C/W78C032C
6.3.4 Data Write Cycle
PARAMETER
ALE Low to WR Low
Data Valid to WR Low
Data Hold from WR High
WR Pulse Width
SYMBOL
TDAW
TDAD
TDWD
TDWR
Note: "∆" ( due to buffer driving delay and wire loading) is 20 nS.
MIN.
3 TCP-∆
1 TCP-∆
1 TCP-∆
6 TCP-∆
TYP.
-
-
-
6 TCP
MAX.
3 TCP+∆
-
-
-
UNIT
nS
nS
nS
nS
6.3.5 Port Access Cycle
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Port Input Setup to ALE Low
TPDS
1 TCP
-
-
nS
Port Input Hold from ALE Low
TPDH
0
-
-
nS
Port Output to ALE
TPDA
1 TCP
-
-
nS
Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to
ALE, since it provides a convenient reference.
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Publication Release Date: December 4, 2006
Revision A6